Can Castle and Beckett keep the world believing that they're really separated in Castle Season 8 Episode 9, even when they're having secret romantic trysts in their own home?

Can they do it while still solving a murder? When a dead body shows up in the middle of Martha's rehearsal, she asks her son to help find the killer. But the investigation takes a strange twist when the victim turns out to be not only an ex-con, but a singer as well.

Who else from the 12th precinct will get in on the act? You'll have to watch Castle online here at TV Fanatic to find out.

C. Orlando was a TV Fanatic Staff Writer. Follow her on Twitter.